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Litostomatea: Haptoria: Pharyngophorida: Actinobolinidae

 Actinobolina sp.
Strand, 1928

Actinobolina Family & Genus: Body ovoid; tentacle-like processes contain toxicysts (Illustrated Guide, 1985). Cell body ovate or spherical; ciliation uniform; extensible tentacles present among cilia; contractile vacuole posterior; macronucleus curved band; fresh water (Kudo, 1966).
Species:

Actinobolina sp., cell body ovoid 41 μm long, cytostome anterior with short collar, a contractile vacuole at posterior end, x 400, x 640, Shirakawa, Fukushima Pref., Japan, October 1999, collected by H. Shiomizu, photo by Y. Tsukii
scale 50 μm scale 100 μm scale 150 μm; x 400 : scale 31 μm scale 63 μm scale 94 μm; x 640
Actinobolina Actinobolina Actinobolina Actinobolina
Actinobolina Actinobolina Actinobolina Actinobolina

Actinobolina vorax: 100-200 μm long; cell body ovoid, pale yellowish brown; cytostome anterior with short collar; about 30 rows of cilia and tentacles; tentaciles not knobbed; fresh water (How to know the protozoa, 1979).

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